Restructuring files

Files are included in the tree because they aren't present in the device, has also been removed from "proprietary-files.txt":
- prebuilt/system/etc/firmware/a225_pfp.fw
- prebuilt/system/etc/firmware/a225_pm4.fw
- prebuilt/system/etc/firmware/a225p5_pm4.fw
- prebuilt/system/etc/firmware/a300_pfp.fw
- prebuilt/system/etc/firmware/a300_pm4.fw

Added to "proprietary-files.txt":
- etc/firmware/vidc_1080p.fw
- lib/libtime_genoff.so

Changed the rootdir directory structure to match the original QCOM, including recent changes made to your repository. Changing excluded files to their respective directories in the prebuilt folder.

Add support to yamaha sensor:
 - prebuilt/root/init.presto.target.rc

Updated files "include / linux" imported from the original kernel.